Probing Azimuthal Anatomy of Hyperbolic Whispering Gallery Modes in hBN

Bogdan Borodin, Samyobrata Mukherjee, Shivaksh Rawat +8

Scattering-type scanning near-field optical microscopy (s-SNOM) is a powerful tool for investigating polaritonic modes. However, an inherent limitation of this technique is that ex…